Glazier&#39;s joint.



N. H. GBDBRQUIST.

GLAZIBRS JOINT. APPLIUATION PILBDJAN. 4, 1911.

[1,1062818 l Patented May 27, 1913.

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cuLuMmA PLANouRAr'H co.. WASHINGTON, D. c.

UNITED sTATEs PATENT oEEioE.

NILS H. CEDERQUIST, OF WEST ALHAMBRA, CALIFORNIA, ASSIGNGR OF ONE-HALFT0 ROBERT A. PULFER, OF LOS ANGELE'CALIFORNIA;

GLAZIERS JOINT.

To all whom t may concern 'Be it known that I, NILs H. CEDERQUisT, acitizen of the United States, residing at West Alhambra, in the count-yof Los Angeles and State of California, have invented a new` and usefulGlaziers Joint, of which the following is a specification.

This invention relates to joints for all glass showcases, and otherpurposes, and particularly to means for joining the glass plates in sucha case to one another and to the frame at the back of the case, orgenerally for joining glass plates to a supporting member.

The main object of the invention is to provide means for fastening theglass plates in such manner lthat they may be assembled to form the caseor may be separated without requiring special skill, so that the plates,fralneand base may be shipped knockeddown and may be assembled at theplace Where the case is to be used, and any` plate may be removed at anytime without inter-A fering with the others. By providing for shippingthe cases in knockedlown",7 con-y the invention, and referring theretoz-Fig-v ure l is a perspective of a show-case provided with my improvedjoint. Fig. 2 is a longitudinal section, and Fig. 3 a transverse sectionof a strip used in attaching the glass plates of the case. Fig. 4- is anelevation ofV a portion of one of the plates showing the strip attachedthereto preliminary to the nishing thereof. Fig. 5 is a transversesection on line @a5-m5 in Fig. 4l. Fig. 6 isa perspective of a portionof the glass plate,

showing an opaque layer therein. .Fig 7 is an endr elevation of a glassplate and a side portion of another glass plate with the strips andlayer on said plates for attachment of said plates together. Fig. 8 is avertical section of the top plate showing the SerialiNo. 600,846.

manner of attachment to the framecbar. i. Fig. 9 is a perspectiveof thecorner-joint i- Patented May 27,1913;

used with relatively thin glas'svplates. 1 F ig. '-f

10 is a perspective of thestrip used for relatively` thin glass plates.

The joint'comprises a cementing strip 1f (Figs. .2 and 3), formed:withfa layerA orA strip of wood Q, and a layer or strip 8,' of

felt or other rfabric or tough 'materialpre senting tensileystrength'ina lateral direcL tion, thatis to say, transverse-tothergrain lf. of the wood, said grain'extendinglongitudi nally of thestripZ, saidlfeltfstrip being cemented to the woodstrip and holding theVsame `against transverse or splitting strains.'

The said strip 3 is secured to the edge of the glass, for example, aplate A5, by cementing if the felt side of the strip to the vedge-oftheglass yas shownat 13 in Figs. .,ftand'.v In +1 this operation,t the'cement takes fup 1 any small linequalitiesor roughness in the faceV vofthe glass, but it will be understoodftlia't larger. inequalitiesdue,-for` exampleyto ageneral convexityor concavityor gradual undulationin the edgeof ther glass, Will be accommodated by the strip as a whole,i the fr strip bending to conform to thegeneral shape of the glassandtWistinglaterallyto t conform to any cantingfor obliquity'in the edgeof the glass.: In cuttingY glass plates'of this character it'generallyoccurs that there is morek or less deviation from a straightl'line on one or both sides,particularly `on the edge'away from thelcutting Sscone,land the woodenp'ortion Q'of the stripfllis made sufAVHcientlythickto compensatelor allow for any such deviations in the edgeof the glassf-v- Moreover, vthis istrip 1 will presentv a uni'- formwidth irrespective of any variation in the thickness of theglass; thusimproving the appearance of show` cases,forexamplegon which itl isused.- lThis strip beingfsub-* stantiallyk unitary with the glass falsoacts t as areinforce, strength'eni1igf1'tlieglass and'lv preventing the*glass from 4starting to split Aat the/edge.

Whenthe' 'st-rip has beenattached'fto the" glass,^:as stated, its outerface -is truedor adopted Where theplates are to be cementedv l directlytogether, or with only an intervening felt strip.

The outer edge of the strip 1, iinished as stated, is coated with alayer e of any suit able cementing material, adapted to be softened bysolvent or heat, said coating being hard and nonadhesive as the platesare sent from the factory, but being adapted to be softened ashereinafter set forth in attaching the plates.

The plate 6 which is to be secured to the edge of the plate abovereferred to is provided on one face thereof with a coating of opaquematerial, along the line for the joint this coating serving to concealthe final joint at which the members are cemented together and alsoserving as a mark` ing strip, indicating the line on which the membersare to be joined. n order to give a uniform appearance of this oint asviewed through the glass, I prefer to coat the glass plate along theline of the joint with an opaque layer such as with cement or paint,indicated at 7, and to apply over this opaque layer a protective stripof cloth indicated at 9 in Fig. 6, secured in place by applying cementindicated at 8, to the coating 7.

The joint is formed by attaching` the members above described together,as shown in Fig. 7. For this purpose it is only necessary to soften theouter cement coating t by solvent or otherwise, at intervalscorresponding to the points where attachment is to be effected. Themembers are then brought together as shown in Fig. 7 and heldtemporarily until the cement hardens, and a secure joint is formed inwhich the attachment of the members is only at more or less separatedpoints indicated at lt@ this construction presenting the advantage thatthe joint may be separated or opened at any time by slipping in a thinknife blade in the joint at parts where there is no cemented joint andthen sliding the knife edge along the oint longitudinally so as to splitthe joint and strip the members from one another.

The invention is advantageously applied in the construction of ashow-case, the plates 5, for example, being the end plates of ashow-case and the plate 6 being the front plate thereof, the jointsabove specied being used between the front edges of the end plates andthe rear face of the front plate, as shown in Fig. 1, and between thetop edges of the front and end plates and the bottom face of the topplate indicated at 10. Said show-case is shown as provided with theusual base 11 and rear frame 12.

The case may be shipped in knocked down conditions with the strip 2 andlayer 7 attached to or formed on the respective plates, but with theadhesive coating on strip 2 in hard or nonadhesive condition. When thecase is to be assembled, the said coatings are moistened by means of asuitable solvent or softened in any other manner, for example, by meansof heating, either continuously along their exposed surfaces or atintervals, so that on bringing the cloth strip 9 in contact with thecement on wood strip 2, the parts will adhere to hold the glass platesin proper relative position.

By softening the cement at intervals rather than continuously along thelength of the joint, a certain amount of flexibility is secured and theplates are less liable to be subjected to injurious strain by reason ofwarping. Moreover', by providing a continuous coating of cement which issoftened at intervals for attaching the plates together, I am enabled tosever the joint and subsequently attach the plates by softening thecement at .different places to those at which it was formerly softened,so that a new cement-ing surface is provided at each reattachment of theplates. rJ'Che case may thus be knocked down and built up again by useof the same ce-menting strip. rlhe use of the open fabric 9 over theopaque coating 7 on the front and top plates masks any irregularities ofthe cementing such as would result from this production of the bond atintervals, or from shrinking open of the joint if the continuous bond isused. The principle of bonding the glass plate to the support atintervals may also be applied to the attachment of the top plate 10 tothe top bar 15 of the rear frame 12 of the show-case. Thus, as shown inFig. 8, the opaque coating 17 on the top plate may be covered with acloth strip 1S for concealing the bonds, a felt strip 19 being appliedto the top of said frame bar 15 and being bonded to the cloth strip 18on the top plate 1Q at intervals, the cement being applied at suchplaces as indicated at 14 in Fig. 8, and being softened when the case isbeing assembled.

The invent-ion is particularly applicable to the utilization inshow-cases of relatively thin glass plates, for example, double strengthwindow glass, and for this purpose the binding strips may be made with aplurality of wooden layers, connected by felt layers. Thus, as indicatedin Figs. 9 and l0, the binding strip comprises a wooden strip 21, a feltlayer 22, and an inner wooden strip 23 which may be grooved or scored asindicated at 2e to receive the edge of a double strength glass plate 25,said groove extending to the full dept-h of the wooden strip 23 or toless depth as may be desired. In this case, the groove 24 may compensatefor or mask any inequalities which may exist in the edge of the glassplate secured therein, but it may also be desirable to true up the outerWooden strip 21 before applying the cement 26 thereon to compensate forlarger variations than can be taken up by the groove 24.

It Will be understood that the function of the felt in the abovedescribed construction is to provide a yielding tough body for holdingthe Wood from splitting, and for connecting the Wood to the glass, andthat instead of felt, any other suitable tough yielding material may beused. Similarly, any suitable fabric may be substituted for the clothstrip Which serves as a protection for the opaque layer, the function ofthis strip being to protect the layer from scratching, etc., inshipment, and to prevent the opaque layer from being pulled off theglass in shrinking of its cement.

An important feature of this invention is the formation of the attachingmeans on the plates or members before said plates or members are set upor built up into the finished structure. The usual procedure in making ashow-case, for example, which is to be shipped knocked down, is to buildup the show-case at the factory, the joint portions being then separatedin disassembling the case for shipment. This involves duplication of theWork of assembling which is avoided by forming the opaque layer 7 and astrip 2 on the respective plates or members before the same are puttogether, the said opaque layer and strip serving to mark the jointWhere the plates are to be attached, as Well as providing the attachingmeans.

What I claim is:

1. The combination of a glass plate having an opaque marking stripcemented thereto, and a supporting member having a cementing stripsecured to one edge thereof, said cementing strip being cemented to saidmarking strip at intervals, and comprising a strip of felt and a Woodenstrip cemented to said felt strip, said Wooden strip having a continuouscoating of cementing 3. The combination of a glass plate having a stripcemented to one face thereof, and a second glass plate having acementing strip secured to one edge thereof, saidicementing stripcomprising an outer layer of Wood and an inner layer of felt, saidlayers being cemented together, lsaid felt being cemented to said edgeof the said glassplate, and the said outer layer of Wood being cementedto the aforesaid strip on the first named glass plate.

4:. The combination With a glass plate, of a strip provided with agrooved Wooden portion embracing the edge of said plate in its groove, afelt portion attached to said Wooden portion, another Wooden portionattached to the other side of said felt portion, and another glass plateattached to said second Wooden portion.

In testimony whereof, I have hereunto set my hand at Los Angeles,California, this 15th day of December, 1910.

NILS I-I. CEDERQUIST.

In presence of- A. P. KNIGHT, FRANK L. A. GRAHAM.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

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